<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
	private $_id = NULL;
	/**
	 * Authenticate a user with username and password. The User password can be encrypted using md5 or hash, so we need to check both here.
	 * @see web/auth/CUserIdentity::authenticate()
	 */
    public function authenticate()
    {
        $record=User::model()->findByAttributes(array('username'=>$this->username));

        if($record===null)
        {
            $this->errorCode=self::ERROR_USERNAME_INVALID;
        }
        else if($record->password == md5($this->password))
        {
            $this->errorCode=self::ERROR_NONE;
        }
        else
        {
            $this->errorCode=self::ERROR_PASSWORD_INVALID;
        }
        $this->_id = $record->id;
        return !$this->errorCode;
    }
    
    public function getId() {
        return $this->_id;
    }
}